Results 41 to 50 of about 1,938 (181)
Open‐source photovoltaic model pipeline validation against well‐characterized system data
Progress in Photovoltaics: Research and Applications, Volume 32, Issue 5, Page 291-303, May 2024.All freely available plane‐of‐array transposition models and PV temperature and performance models in pvlib‐python and pvpltools‐python were examined against multiyear field data. Although differences can be observed at different times of the day/year, this study shows that the availability of system‐specific input data may be more important than PV ...
Lelia Deville +4 more
wiley +1 more source
A NEW FORM OF THERMOELECTRIC RECORDING PYRHELIOMETER
Monthly Weather Review, 1923 SYNOPSISA thermopile consisting of 50 couples is made from 6Au-40Pd with 90Pt-10Rh wire 0.0016 inch in diameter, by electrically fusing the junctions. Alternate junctions are attached to, but electrically insulated from, two thin concentric copper rings. The inner ring has its upper surface painted black; the outer ring, white.
Herbert H. Kimball, Hermann E. Hobbs
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On Effective Spectral Wideband Models for Clear Sky Atmospheric Emissivity and Transmissivity
Journal of Geophysical Research: Atmospheres, Volume 129, Issue 7, 16 April 2024.Abstract Clear sky emittance models provide critical information for the determination of downwelling longwave irradiance at the Earth's surface. This study updates existing calculations which relate clear sky longwave emissivity with the main (and most variable) greenhouse gas in the atmosphere, water vapor.
L. M. Matsunobu, C. F. M. Coimbra
wiley +1 more source
Special Pyrheliometer Shroud Development [PDF]
, 1984 To insure that the insolation values accurately represent the input power to a power conversion unit the field of view (FOV) of the concentrator aperture and the insolation radiometer must be the same.
Dennison, E. W.
core +1 more source
Impact of Saharan dust outbreaks on short‐range weather forecast errors in Europe
Quarterly Journal of the Royal Meteorological Society, Volume 150, Issue 760, Page 1704-1723, April 2024 Part A.Mineral dust interacts directly with radiation and indirectly alters cloud properties. Operational numerical weather prediction models simplify aerosol, such as dust. This may lead to shortcomings in models, for instance during outbreaks of Saharan dust towards Europe.
Kilian Hermes +4 more
wiley +1 more source
Observed patterns of surface solar irradiance under cloudy and clear‐sky conditions
Quarterly Journal of the Royal Meteorological Society, Volume 150, Issue 761, Page 2338-2363, April 2024 Part B.The atmosphere drives large variations in sunlight at the surface on scales as small as seconds or metres, mostly through clouds. To observe this sunlight in detail, we have deployed dense networks of low‐cost radiometers in two field campaigns.
Wouter Mol +5 more
wiley +1 more source
IET Science, Measurement &Technology, Volume 18, Issue 2, Page 49-64, March 2024.A novel convolutional extension neural network (CENN) algorithm, which is a jointed architecture based on convolutional neural network (CNN) and extension neural network (ENN), takes advantage of CNN and ENN for fault diagnosis method of PV arrays. Abstract PV fault diagnosis remains difficult due to the non‐linear characteristic of PV output, which ...
Shiue‐Der Lu +2 more
wiley +1 more source
Validation and benchmarking of broadband- and spectral- radiometers [PDF]
, 2016 The JRC works together with policy makers, industry and the research community to monitor the progress of photovoltaic technology and help develop the solutions for the future.
GALLEANO Roberto, ZAAIMAN Willem
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Solar RRL, Volume 8, Issue 4, February 2024.Solar forecasts are crucial in addressing the solar energy integration challenges. The study presents a benchmark of short‐term solar forecasting models based on all‐sky imagers. A deep learning (DL) model is introduced and combined with a physical and persistence model, forming a hybrid model.
Yann Fabel +9 more
wiley +1 more source
Calibration campaigns for pyrheliometer and pyranometer
, 2016 Accurate measurements of solar irradiance are crucial for the planning, tests and operation of solar power plants. The measurement uncertainty caused by the calibration is the most relevant contribution to the overall uncertainty of well-maintained radiometers.
Nouri, B. +7 more
openaire +2 more sources